(gdb) where
#0  0x000000307ff2e2ed in raise () from /lib64/tls/libc.so.6
#1  0x000000307ff2fa3e in abort () from /lib64/tls/libc.so.6
#2  0x0000002a960f2cc1 in JS_Assert (s=Could not find the frame base for "JS_Assert".
) at jsutil.c:155
#3  0x0000002a9608b825 in js_AllocGCThing (cx=0x7539e0, flags=1) at jsgc.c:478
#4  0x0000002a960f015d in js_NewString (cx=0x7539e0, chars=0xa0a7f0, length=15, gcflag=0) at jsstr.c:2438
#5  0x0000002a960b2f06 in js_obj_toString (cx=0x7539e0, obj=0x938c10, argc=0, argv=0x759810, rval=0x40385650)
    at jsobj.c:980
#6  0x0000002a96090712 in js_Invoke (cx=0x7539e0, argc=0, flags=2) at jsinterp.c:1280
#7  0x0000002a96090b84 in js_InternalInvoke (cx=0x7539e0, obj=0x938c10, fval=7477952, flags=0, argc=0, argv=0x0, 
    rval=0x40385900) at jsinterp.c:1377
#8  0x0000002a960bd833 in js_TryMethod (cx=0x7539e0, obj=0x938c10, atom=0x6cfcb0, argc=0, argv=0x0, rval=0x40385900)
    at jsobj.c:3665
#9  0x0000002a960bb9c3 in js_DefaultValue (cx=0x7539e0, obj=0x938c10, hint=JSTYPE_VOID, vp=0x40386050) at jsobj.c:3111
#10 0x0000002a96096648 in js_Interpret (cx=0x7539e0, result=0x403861d0) at jsinterp.c:2651
#11 0x0000002a9609132e in js_Execute (cx=0x7539e0, chain=0x7218e0, script=0x78d3a0, down=0x0, flags=0, result=0x40386880)
    at jsinterp.c:1509
#12 0x0000002a9605851c in JS_ExecuteScript (cx=0x7539e0, obj=0x7218e0, script=0x78d3a0, rval=0x40386880) at jsapi.c:3553